Home / 21,996.33-30,349.68-12,436.41

Finding the Fourth Proportional to 21,996.33, 30,349.68 and 12,436.41

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Solution

The fourth proportional to 21,996.33, 30,349.68 and 12,436.41 is: 17,159.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.33 : 30,349.68 = 12,436.41 : x
  2. Step 2: Convert to fraction form
    21,996.33/30,349.68 = 12,436.41/x
  3. Step 3: Cross multiply
    21,996.33x = 30,349.68 × 12,436.41
  4. Step 4: Simplify right side
    21,996.33x = 377,441,063.85
  5. Step 5: Solve for x
    x = 377,441,063.85/21,996.33
  6. Step 6: Final answer
    x = 17,159.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.